CN109880544A - A kind of mute black copper foil one-faced tapes - Google Patents
A kind of mute black copper foil one-faced tapes Download PDFInfo
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- CN109880544A CN109880544A CN201811625303.7A CN201811625303A CN109880544A CN 109880544 A CN109880544 A CN 109880544A CN 201811625303 A CN201811625303 A CN 201811625303A CN 109880544 A CN109880544 A CN 109880544A
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- copper foil
- layer
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- faced tapes
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Abstract
The present invention relates to luminescent screen processing technique field, specifically a kind of mute black copper foil one-faced tapes, including adherent layer, gluing oxidant layer, soft copper foil substrate layer and mute dirty oil layer of ink；Compared with prior art, the beneficial effects of the present invention are: (1) special resistance to warpage acrylic acid adhesive, the decline of high temperature adhesion strength is small, attach in short term easily peelable, the long-term adhesion strength that attaches is climbed greatly, and resistance to reflex action performance is excellent.(2) substrate is used as using soft state extra thin copper foil, Yi Bianxian when attaching, distortional stress is small not to rebound, and followability is good, while can complete shading, prevents side light leakage, while copper foil good heat dissipation, transmission is fastly, moreover it is possible to prevent electrostatic from generating.(3) copper foil surface uses mute black coating, and appearance is good, beautiful and generous, is consistent with electronic product overall appearance.
Description
Technical field
The present invention relates to luminescent screen processing technique field, specifically a kind of mute black copper foil one-faced tapes.
Background technique
In the electronic products such as mobile phone, computer, screen accounting is higher and higher, and screen intensity requirement is higher and higher, and thickness is more next
Thinner, the light leakage risk of luminescent screen side also increases with it, and in the prior art, to solve edge leakage problem, can survey side
It attaches black one-faced tapes with bonding excessively band to be covered, these one-faced tapes are generally black PET base material coating transparent third
Olefin(e) acid or transparent PET coating ink are coated black adhesive, also have the addition black color paste in transparent adhesive to make adhesive
Blackening increases shaded effect, but PET film is used, since PET film is there are certain bounce, to easily cause as the adhesive tape of substrate
It tilts and disengages, such as using the substrate of transparent PET coating ink, the slight flaw of ink coating can all cause pin hole light leak spot, together
When generated heat due to caused by screen light source, viscosity has a downward trend to adhesive at high temperature, increases and tilts risk.
PET film is used, since PET film is there are certain bounce, to easily cause and stick up as the adhesive tape of substrate in the prior art
It rises and disengages, such as using the substrate of transparent PET coating ink, the slight flaw of ink coating can all cause pin hole light leak spot, simultaneously
It is generated heat due to caused by screen light source, viscosity has downward trend to adhesive at high temperature, increases and tilts risk.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of mute black copper foil one-faced tapes, which has good attaching
Followability, resistance to warpage, while there is 100% shaded effect, light leakage, does not have beautiful mute black surface, while copper foil has
Good static conductive effect, heat conduction and heat radiation effect are also very prominent.
In order to solve the above technical problems, present invention discloses a kind of mute black copper foil one-faced tapes, including adherent layer, adhesive
Layer, soft copper foil substrate layer and mute dirty oil layer of ink；
The adherent layer peeling force < 100gf/25mm；
The adhesion strength of the gluing oxidant layer is suitble to select > 600gf/25mm；
The material of the soft copper foil substrate layer is copper, with a thickness of 6-20 μm,；
The whole gloss value of the mute dirty oil layer of ink controls within 4, and L value controls between 23-27.
As a specific embodiment of the invention, the overall thickness control of the mute dirty oil layer of ink is 2-5 μm.
As a specific embodiment of the invention, the adherent layer is transparent PET release film, the thickness of the adherent layer
Section is 25-100 μm.
As a specific embodiment of the invention, the gluing oxidant layer is acrylic acid adhesive.
As a specific embodiment of the invention, the gluing oxidant layer with a thickness of 10-50 μm.
As a specific embodiment of the invention, the soft copper foil substrate layer uses the rolled copper foil of soft state.
As a specific embodiment of the invention, the mute dirty oil layer of ink uses letterpress coating method, first in copper
Foil surface painting black ink layer, then dumb light coating is coated in ink pellet surface.
As a specific embodiment of the invention, the coating method of the gluing oxidant layer is transfer coated or directly applies
Cloth.
As a specific embodiment of the invention, the gluing oxidant layer the preparation method is as follows:
A, nitrogen is passed through into the reaction vessel equipped with agitating device, be added 21 parts of acrylic acid-2-ethyl caproite, 2 parts
Acrylic acid 2- hydroxy methacrylate, then 3.5 parts of acrylic acid is heated to 80 DEG C while stirring；
B, 0.02 part of 2-2 azodiisobutyronitrile is added after 10min, ties up temperature of reaction kettle by the adjusting of cooling system
It holds at 90 DEG C, sustained response 7.5hr；
C, be added dropwise 67 parts of 2-EHA into reaction kettle after reaction proceeds to 2hr, 2 parts of acrylic acid and
2.5 parts of ethyl acrylate is added dropwise and continues 1.5hr, reacts the ethyl acetate of 40 parts of addition after 3hr, adds 0.03 part after 5hr
AIBN；
D, acrylate copolymer is taken out after the reaction was completed, and with acrylate copolymer for 100 parts, 20 to 35 parts of thickening is added
Resin；
E, 40% is diluted to ethyl acetate after acrylate copolymer is mixed with tackifying resin to consolidate and contain, and then adds 0.5-
1.2 parts of curing agent.
As a specific embodiment of the invention, the tackifying resin is hydrogenated rosin type or hydriding terpene phenolic, is increased
Viscosity resin softening point is between 90-140 DEG C, and hydroxyl value is between 20-60；The curing agent is isocyanates.
Compared with prior art, the beneficial effects of the present invention are: (1) special resistance to warpage acrylic acid adhesive, high temperature are viscous
Put forth effort to decline small, attaches in short term easily peelable, the long-term adhesion strength that attaches is climbed greatly, and resistance to reflex action performance is excellent.(2) the ultra-thin copper of soft state is used
Foil is as substrate, and Yi Bianxian when attaching, distortional stress is small not to rebound, and followability is good, while can complete shading, prevents side from leaking
Light, while copper foil good heat dissipation, transmission are fast, moreover it is possible to prevent electrostatic from generating.(3) copper foil surface uses mute black coating, and appearance is good, beautiful
It is generous, it is consistent with electronic product overall appearance.
Detailed description of the invention
Fig. 1 is section structural schematic diagram of the invention.
In figure: 1, adherent layer, 2, gluing oxidant layer, 3, substrate layer, 4, mute dirty oil layer of ink.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those skilled in the art are made according to these embodiments, method or functionally
Transformation is included within the scope of protection of the present invention.
A kind of mute black copper foil one-faced tapes, which is characterized in that including adherent layer, gluing oxidant layer, soft copper foil substrate layer and
Mute dirty oil layer of ink；
The adherent layer is transparent PET release film or release film paper, and peeling force is not disengaged without specific limitation in guarantee
In the case of, in conjunction with the operating process of actual use, < 100gf/25mm is preferred, preferably < 50gf/25mm, further preferred <
25gf/25mm prevents the uneven of copper foil surface to reach preferable planarization, and the preferably release film of PET material, thickness is excellent
25-100 μm is selected, further preferred 30-75 μm, preferably 50 μm not only can guarantee certain stiffness, but also facilitate the cross cutting work of back segment
Skill；
The gluing oxidant layer is the acrylic acid adhesive of high temperature resistant warpage preventing, and coating thickness is controlled at 10-50 μm, further
Control is at 20-40 μm；Adhesion strength is suitble to select > 600gf/25mm, preferably > 900gf/25mm, further preferred > 1500gf/
25mm；Well known transfer coated, directly coating etc. can be selected in coating method, and the mode being preferably directly coated on substrate is to improve
The adhesive force of adhesive；
The material of the soft copper foil substrate layer be copper, 6-20 μm of thickness, preferably 6-15 μm, further preferred 6-12 μm,
It is preferred with the rolled copper foil of soft state；
The mute dirty oil layer of ink uses letterpress coating method, first in copper foil surface painting black ink layer, then in oil
Black surface is coated with dumb light coating, and the whole gloss value of coating controls within 4, and L value (represents white to black scope in lightness colors
That is bright-dark degree) between 23-27, total coating thickness is controlled at 2-5 μm for control.
Further, the gluing oxidant layer the preparation method is as follows:
A, nitrogen is passed through into the reaction vessel equipped with agitating device, be added 21 parts of acrylic acid-2-ethyl caproite, 2 parts
Acrylic acid 2- hydroxy methacrylate, then 3.5 parts of acrylic acid is heated to 80 DEG C while stirring；
B, 0.02 part of 2-2 azodiisobutyronitrile is added after 10min, ties up temperature of reaction kettle by the adjusting of cooling system
It holds at 90 DEG C, sustained response 7.5hr；
C, be added dropwise 67 parts of 2-EHA into reaction kettle after reaction proceeds to 2hr, 2 parts of acrylic acid and
2.5 parts of ethyl acrylate (EA) is added dropwise and continues 1.5hr, reacts the ethyl acetate of 40 parts of addition after 3hr, adds after 5hr
0.03 part of AIBN；
D, acrylate copolymer is taken out after the reaction was completed, and with acrylate copolymer for 100 parts, 20 to 35 parts of thickening is added
Resin, tackifying resin are hydrogenated rosin type or hydriding terpene phenolic, and between 90-140 DEG C, hydroxyl value exists tackifying resin softening point
Between 20-60.
E, 40% is diluted to ethyl acetate after acrylate copolymer is mixed with tackifying resin to consolidate and contain, and then adds 0.5-
1.2 parts of curing agent, curing agent are isocyanates.
Technical solution of the present invention is further illustrated below by way of specific embodiment.
Embodiment one
Flexographic printing techniques painting black ink is used in the one side of copper foil, coating is completed post curing r for 24 hours, is then coated with
Then dumb light coating is coated with special acrylic acid adhesive in the adhesive surface of adherent layer, be bonded with the another side of copper foil, system
One-faced tapes are obtained, 48hr followed by aging obtains one-faced tapes of the invention.
Embodiment two
Flexographic printing techniques painting black ink is used in the one side of copper foil, coating is completed post curing r for 24 hours, is then coated with
Then dumb light coating is coated with special acrylic acid adhesive in the another side of copper foil, be bonded with the adhesive surface of adherent layer, system
One-faced tapes are obtained, 48hr followed by aging obtains one-faced tapes of the invention.
The present invention using soft extra thin copper foil as substrate, the copper foil base material of soft state after attaching to attaching face bending,
The tracing abilities such as curved surface are good, do not generate bounce, while the mute black ink of copper foil coated on one side, can achieve good appearance,
Ink adds the shielding of a metal foil, and light-proofness is very good, will not generate light leak spot completely；Another side is coated with special resistance to reflex action
Acrylic acid adhesive, at high temperature fissility decline it is small, disengage risk it is small, reliable performance.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of mute black copper foil one-faced tapes, which is characterized in that including adherent layer, gluing oxidant layer, soft copper foil substrate layer and mute
Dirty oil layer of ink；
The adherent layer peeling force < 100gf/25mm；
The adhesion strength of the gluing oxidant layer is suitble to select > 600gf/25mm；
The material of the soft copper foil substrate layer is copper, with a thickness of 6-20 μm,；
The whole gloss value of the mute dirty oil layer of ink controls within 4, and L value controls between 23-27.
2. a kind of mute black copper foil one-faced tapes according to claim 1, which is characterized in that the total thickness of the mute dirty oil layer of ink
Degree control is 2-5 μm.
3. a kind of mute black copper foil one-faced tapes according to claim 1, which is characterized in that the adherent layer is transparent PET
Release film, the thickness section of the adherent layer are 25-100 μm.
4. a kind of mute black copper foil one-faced tapes according to claim 1, which is characterized in that the gluing oxidant layer is acrylic acid
Adhesive.
5. a kind of mute black copper foil one-faced tapes according to claim 1, which is characterized in that the gluing oxidant layer with a thickness of
10-50μm。
6. a kind of mute black copper foil one-faced tapes according to claim 1, which is characterized in that the soft copper foil substrate layer is adopted
With the rolled copper foil of soft state.
7. a kind of mute black copper foil one-faced tapes according to claim 1, which is characterized in that the mute dirty oil layer of ink is using convex
Version printing coating method, first in copper foil surface painting black ink layer, then in ink pellet surface coating dumb light coating.
8. a kind of mute black copper foil one-faced tapes according to claim 1, which is characterized in that the coating side of the gluing oxidant layer
Formula is transfer coated or is directly coated with.
9. a kind of mute black copper foil one-faced tapes described in any one according to claim 1~8, which is characterized in that the gluing
Oxidant layer the preparation method is as follows:
A, nitrogen is passed through into the reaction vessel equipped with agitating device, be added 21 parts of acrylic acid-2-ethyl caproite, the third of 2 parts
Then olefin(e) acid 2- hydroxy methacrylate, 3.5 parts of acrylic acid are heated to 80 DEG C while stirring；
B, 0.02 part of 2-2 azodiisobutyronitrile is added after 10min, maintains temperature of reaction kettle by the adjusting of cooling system
90 DEG C, sustained response 7.5hr；
C, 67 parts of 2-EHA, 2 parts of acrylic acid and 2.5 is added dropwise into reaction kettle after reaction proceeds to 2hr
The ethyl acrylate of part is added dropwise and continues 1.5hr, reacts the ethyl acetate of 40 parts of addition after 3hr, adds 0.03 part after 5hr
AIBN；
D, acrylate copolymer is taken out after the reaction was completed, and with acrylate copolymer for 100 parts, 20 to 35 parts of thickening tree is added
Rouge；
E, 40% is diluted to ethyl acetate after acrylate copolymer is mixed with tackifying resin to consolidate and contain, and then adds 0.5-1.2
The curing agent of part.
10. a kind of mute black copper foil one-faced tapes according to claim 9, which is characterized in that the tackifying resin is hydrogenation
Colophony type or hydriding terpene phenolic, tackifying resin softening point is between 90-140 DEG C, and hydroxyl value is between 20-60；The curing agent
For isocyanates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625303.7A CN109880544A (en) | 2018-12-28 | 2018-12-28 | A kind of mute black copper foil one-faced tapes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811625303.7A CN109880544A (en) | 2018-12-28 | 2018-12-28 | A kind of mute black copper foil one-faced tapes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109880544A true CN109880544A (en) | 2019-06-14 |
Family
ID=66925335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811625303.7A Pending CN109880544A (en) | 2018-12-28 | 2018-12-28 | A kind of mute black copper foil one-faced tapes |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111040650A (en) * | 2019-12-30 | 2020-04-21 | 太仓金煜电子材料有限公司 | Production method of ultrathin printed heat-conducting label and label |
| CN111560223A (en) * | 2020-05-19 | 2020-08-21 | 安徽格林开思茂光电科技股份有限公司 | Single-sided adhesive tape double-conductive electrolytic copper adhesive tape |
| CN112126362A (en) * | 2020-09-25 | 2020-12-25 | 广东东立新材料科技股份有限公司 | Shading material functional film and preparation method and application thereof |
| CN112210315A (en) * | 2020-09-30 | 2021-01-12 | 广东东立新材料科技股份有限公司 | Polyester film functional material and preparation method and application thereof |
| CN113337225A (en) * | 2021-06-30 | 2021-09-03 | 东莞市德普特电子有限公司 | Copper foil composite assembly structure and method for attaching copper foil composite assembly structure to FPC (flexible printed circuit) |
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| CN102268230A (en) * | 2010-06-02 | 2011-12-07 | 日东电工株式会社 | Double-coated pressure-sensitive adhesive tape |
| CN202201861U (en) * | 2011-09-15 | 2012-04-25 | 太仓金煜电子材料有限公司 | Shading screening and insulating dielectric tape for electronic product |
| CN103484031A (en) * | 2013-09-29 | 2014-01-01 | 苏州华周胶带有限公司 | Conductive tape |
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2018
- 2018-12-28 CN CN201811625303.7A patent/CN109880544A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268230A (en) * | 2010-06-02 | 2011-12-07 | 日东电工株式会社 | Double-coated pressure-sensitive adhesive tape |
| CN202201861U (en) * | 2011-09-15 | 2012-04-25 | 太仓金煜电子材料有限公司 | Shading screening and insulating dielectric tape for electronic product |
| CN103484031A (en) * | 2013-09-29 | 2014-01-01 | 苏州华周胶带有限公司 | Conductive tape |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111040650A (en) * | 2019-12-30 | 2020-04-21 | 太仓金煜电子材料有限公司 | Production method of ultrathin printed heat-conducting label and label |
| CN111560223A (en) * | 2020-05-19 | 2020-08-21 | 安徽格林开思茂光电科技股份有限公司 | Single-sided adhesive tape double-conductive electrolytic copper adhesive tape |
| CN112126362A (en) * | 2020-09-25 | 2020-12-25 | 广东东立新材料科技股份有限公司 | Shading material functional film and preparation method and application thereof |
| CN112126362B (en) * | 2020-09-25 | 2022-03-25 | 广东东立新材料科技股份有限公司 | Shading material functional film and preparation method and application thereof |
| CN112210315A (en) * | 2020-09-30 | 2021-01-12 | 广东东立新材料科技股份有限公司 | Polyester film functional material and preparation method and application thereof |
| CN112210315B (en) * | 2020-09-30 | 2022-03-22 | 广东东立新材料科技股份有限公司 | Polyester film functional material and preparation method and application thereof |
| CN113337225A (en) * | 2021-06-30 | 2021-09-03 | 东莞市德普特电子有限公司 | Copper foil composite assembly structure and method for attaching copper foil composite assembly structure to FPC (flexible printed circuit) |
| CN113337225B (en) * | 2021-06-30 | 2023-11-17 | 东莞市德普特电子有限公司 | Copper foil composite assembly structure and method for attaching copper foil composite assembly structure to FPC |
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Application publication date: 20190614 |